Periodic Table Project
Across
- 2. are killed by halogens
- 5. represents the number of valence electrons
- 8. metals are in the middle of the table
- 9. has the largest element on the periodic table
- 12. is an example of a noble gas
- 15. only need 1 electrons to have a full valence shell
- 17. has an atomic number of 8
- 19. get more reactive as you go down the column
- 20. gases are nonreactive
Down
- 1. is the measure of whether or not atoms will trade electrons with other atoms
- 3. is the pattern of change
- 4. is the most reactive halogen
- 6. is the first element in the periodic table
- 7. was discovered in the USA and is the most recent discovered element
- 10. represents the number of shells
- 11. has the heaviest mass in noble gasses
- 13. invented the periodic table
- 14. metals are located in column 2
- 16. move left to right
- 18. electrons are on the outermost shell of the atom